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2026 Jeep Gladiator maintenance schedule

The 2026 Gladiator is part of the JT generation (2020-2026), sold as a pickup truck. Below: its service intervals with the source behind each one, the fluids it takes, and the NHTSA recalls issued for it.

Service schedule

What the 2026 Gladiator needs, and when

4 of these 12 items come from Jeep's own published schedule. Manufacturer rows link to Jeep's own schedule, Independent rows to a service shop or parts retailer's published guide. Rows marked Unverified have no source Carlyle could confirm and are shown for completeness.

ServiceIntervalSource
Engine oil and filter

Max interval; 4,000-6,000 for severe duty/towing

10,000 mi / 1 yearIndependent
Engine air filter

Replace more often if driving dusty/unpaved roads

30,000 mi / 3 yearsIndependent
Cabin air filter

Vital for interior air quality on trails

20,000 mi / 2 yearsIndependent
Tire rotation

Rotate with every oil change

10,000 mi / 1 yearIndependent
Brake fluid

Time-based replacement

2 yearsManufacturer
Engine coolant

First flush at 10yr/150k, then every 5yr/50k

150,000 mi / 10 yearsManufacturer
Transmission fluid

For severe duty or heavy towing

60,000 miIndependent
Spark plugs (3.6L)

Then every 50,000 miles thereafter

100,000 miIndependent
Serpentine belt

Inspect starting at 60,000 miles (approx. 100,000 mi benchmark)

Inspect, replace as neededIndependent
Differential and transfer case fluid (4WD)

Heavy/off-road use requires 30k replacement; inspect normal

30,000 miManufacturer
PCV valve

Inspect and replace if needed (approx. 100,000 mi benchmark)

Inspect, replace as neededUnverified
12V battery

Check for slow crank or swelling

Inspect, replace as neededManufacturer

Intervals are for normal driving; towing, short trips, extreme heat or dust shorten them.

Fluids and engines

What goes in it

Engine oil
0W-20 (3.6L) / 5W-40 (3.0L)
Coolant
Mopar OAT
Transmission fluid
ZF 8-Speed ATF

Powertrains in this generation

  • 3.6L 6-cyl (3.6L Pentastar V6), 285 hp, 8-speed Auto / 6-speed Manual, 4WD
  • 3.0L 6-cyl diesel (3.0L EcoDiesel V6), 260 hp, 8-speed Auto, 4WD

Confirm the exact spec against the owner's manual or the label under the hood; capacities vary by engine and drivetrain.

Safety recalls

2 NHTSA recalls for the 2026 Jeep Gladiator

From NHTSA's recall database, matched by model and year. Recall repairs are free at Jeep dealers, and a given car may already be fixed or fall outside a campaign, so check the VIN at nhtsa.gov/recalls before you buy.

Back over prevention

NHTSA 26V531000

August 2026

Chrysler (FCA US, LLC) is recalling certain 2026 Jeep Wrangler, Jeep Gladiator, Jeep Compass, Jeep Cherokee, Jeep Grand Cherokee, Jeep Grand Cherokee L, Jeep Grand Wagoneer, Jeep Grand Wagoneer L, Ram Promaster, Ram Promaster EV, Ram 1500, Ram 2500, Chrysler Pacifica Plug-In Hybrid, Chrysler Voyager, and 2026-2027 Chrysler Pacifica and Dodge Charger vehicles. The rearview camera image may fail to display when the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."

Remedy: Radio software will be updated by a dealer or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed beginning September 2, 2026. Owners may contact Chrysler customer service at 800-853-1403. Chrysler's number for this recall is 78D. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov on August 20, 2026.

Wheels

NHTSA 26V456000

July 2026

Chrysler (FCA US, LLC) is recalling certain 2026 Jeep Gladiator and Jeep Wrangler vehicles. The walls for the steel wheels may be too thin, allowing them to crack or detach, which can result in a loss of vehicle control.

Remedy: Dealers will inspect and replace the steel wheels and valve stems, as necessary, free of charge. Owner notification letters are expected to be mailed September 4, 2026. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is 05D. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov beginning July 23, 2026.

Running costs

What maintenance typically costs

A typical year of maintenance
$536

Typical US independent-shop estimates for this generation; they vary by region and condition.

Other Gladiator model years

JT (2020-2026)

2020202120222023202420252026

Shopping new? The Jeep Gladiator guide covers the current model, with what it costs to keep for 1 to 15 years.

Sources

Researched 2026-09-19. Modeling, not mechanic advice - always confirm against your car's owner's manual and service records.

Running a Gladiator for income?

Carlyle scores the exact listing on cost per remaining mile and projected Turo income, so you know what a 2026 Gladiator earns before you buy it.

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